Vulnerability record · CVE-2020-13227 · published 2 June 2020

CVE-2020-13227: Sysax multi server path traversal vulnerability

Sysax · Multi Server

An issue was discovered in Sysax Multi Server 6.90. An attacker can determine the username (under which the web server is running) by triggering an invalid path permission error. This bypasses the fakepath protection mechanism.

5.3 CVSS 3.1 Medium EPSS 1.9% · top 21.5% CWE-22 · Path traversal

5.3CVSS 3.1 base score, v2 5.0

1.9%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

6References, 4 tagged exploit

17 Jun 2026Last modified by NVD

Description

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Multi Server Sysax

References

Link	Tags
https://github.com/wrongsid3	Third Party Advisory
https://github.com/wrongsid3/Sysax-MultiServer-6.90-Multiple-Vulnerabilities/blob/master/README.md	ExploitThird Party Advisory
https://pasteboard.co/J9eF12G.png	ExploitThird Party Advisory
https://github.com/wrongsid3	Third Party Advisory
https://github.com/wrongsid3/Sysax-MultiServer-6.90-Multiple-Vulnerabilities/blob/master/README.md	ExploitThird Party Advisory
https://pasteboard.co/J9eF12G.png	ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.3CVE-2012-10060Sysax multi server stack-based buffer overflow vulnerabilitySysax Multi Server versions prior to 5.55 contain a stack-based buffer overflow in its SSH service. When a remote attacker supplies an overly long us…EPSS 3.0%13 Aug 2025 9.0CVE-2009-4790Sysax multi server path traversal vulnerabilityMultiple directory traversal vulnerabilities in Sysax Multi Server 4.5 allow remote authenticated users to read or modify arbitrary files via crafted…EPSS 3.9%22 Apr 2010 8.8CVE-2020-13229Sysax multi server vulnerabilityAn issue was discovered in Sysax Multi Server 6.90. A session can be hijacked if one observes the sid value in any /scgi URI, because it is an authen…EPSS 1.6%2 Jun 2020 8.7CVE-2013-10065Sysax multi server vulnerabilityA denial-of-service vulnerability exists in Sysax Multi-Server version 6.10 via its SSH daemon. A specially crafted SSH key exchange packet can trigg…EPSS 1.6%5 Aug 2025 7.5CVE-2024-53458Sysax multi server uncontrolled resource consumption vulnerabilitySysax Multi Server 6.99 is vulnerable to a denial of service (DoS) condition when processing specially crafted SSH packets.EPSS 0.53%5 Mar 2025 7.1CVE-2012-6530Sysax Multi Server HTTP stack buffer overflow enables remote code executionSysax Multi Server before 5.52 contains a stack-based buffer overflow that is reachable when HTTP is enabled. A remote authenticated user holding the…EPSS 46%analysed31 Jan 2013 6.5CVE-2020-23574Sysax multi server memory buffer overflow vulnerabilityWhen uploading a file in Sysax Multi Server 6.90, an authenticated user can modify the filename="" parameter in the uploadfile_name1.htm form to a le…EPSS 0.95%19 Aug 2020 6.1CVE-2020-13228Sysax multi server cross-site scripting vulnerabilityAn issue was discovered in Sysax Multi Server 6.90. There is reflected XSS via the /scgi sid parameter.EPSS 3.1%2 Jun 2020

Source: NIST National Vulnerability Database (record CVE-2020-13227), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.